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Q.

Poling is used for the purification of :

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a

Sn

b

Cu

c

Pb

d

Zn

answer is A, B.

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Detailed Solution

Poling is used for the purification of Sn and Cu.

Polling is a metallurgical process used to purify metals like copper, which has copper oxide as a contaminant, and tin, which has stannic oxide, commonly known as "SnO2," as an impurity.

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